From Saint-Jean-de-Maurienne, follow the Arvan Valley; there are then two possible routes:
- via Albiez-Montrond: climb up to Albiez-le-Vieux and the Col du Mollard, then descend to Montrond before climbing back up to Le Chalmieu,
- take the D926 towards the Arvan Valley and Saint-Jean-d’Arves, turn left towards Montrond and climb up to Le Chalmieu.
Park in the car park at the top of the village.
(S/E) Avoid the summer road, which continues on; instead, take the path from the car park that climbs straight up. It crosses the road several times, notably at the Combet oratory, then climbs up to the TV relay station, where the road ends in summer.
(1) Continue along the path, which levels out at Coulouvreuse towards Les Chabottes.
(2) Turn slightly to the right to continue towards Le Plan and Le Lissolet, passing close to Pré-Valloire as you climb; the route then descends slightly along the stream, following a gully to Le Bassin.
(3) Turn right to cross a tributary of the main stream and head uphill towards the Manches chalets until you reach the clearly visible footbridge over the Pradin stream.
(4) Cross the stream via the footbridge or alongside it, depending on the snow conditions, and continue climbing whilst heading south, passing close to the Chalet de la Motte and following the ridge that overlooks the Ruisseau des Mulatières and its gullies on the right.
This ridge, which is at times slightly steeper, leads via gentler final slopes to the Col de la Basse du Gerbier, at an altitude of 2,553 m.
(5) Continue along the ridge for a few hundred metres towards the Aiguilles d’Arves for a slightly more unobstructed view.
(6) From this high point of the hike, you can return via the same route, or take a few alternative routes; for example, from the summit, you can head straight down into the rolling hills to rejoin the ascent track further down.
(1) On the final descent from the Relais sur le Chalmieu, if there isn’t enough snow on the path, you can cut across the fields, aiming for the remaining patches of snow to reach the Chalmieu
(S/E).